SAE J2284-3-2002 High-Speed CAN (HSC) for Vehicle Applications at 500 KBPS.pdf
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1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefr
2、om, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. TO PLACE A DOCUMENT ORDER: +1 (724) 776-4970 FAX: +1 (724) 776-0790 SAE WEB ADDRESS h
3、ttp:/www.sae.org Copyright 2002 Society of Automotive Engineers, Inc. All rights reserved.Printed in U.S.A. SURFACE VEHICLE 400 Commonwealth Drive, Warrendale, PA 15096-0001 RECOMMENDED PRACTICE J2284-3 REV. MAR2002 Issued2001-05 Revised2002-03 Superseding J2284-3 MAY2001 High-Speed CAN (HSC) for Ve
4、hicle Applications at 500 KBPS ForewordThe objective of SAE J2284-3 is to define a level of standardization in the implementation of a 500 KBPS vehicle communication network using the Controller Area Network (CAN) protocol. The goal is to achieve a standard Electronic Control Unit (ECU) Physical Lay
5、er, Data Link Layer, and Media Design Criteria which will allow ECU and tool manufacturers to satisfy the needs of multiple end users with minimum modification to a basic design. Likewise, end users will benefit in lower ECU cost achieved from the high volumes of the basic design. TABLE OF CONTENTS
6、1.Scope. 3 2.References. 3 2.1Applicable Publications 3 2.1.1SAE Publications 3 2.1.2ISO Publications.4 2.1.3Other Publications 4 3.Definitions.4 4.Acronyms .5 5.System Level Attributes of the Network 5 5.1Message Format 5 5.2500 KBPS Communication Rate 5 5.3Communication Among 16 ECUs.5 5.4Topology
7、 And Termination .5 5.5Unshielded Media. 5 5.6Communication/Survivability Under Faulted Conditions.5 5.7EMC Criteria. 5 SAE J2284-3 Revised MAR2002 -2- 6.ECU Requirements.6 6.1Absolute Maximum Ratings 6 6.1.1Direct Voltage Connection 6 6.1.2Unpowered Storage Temperature6 6.2DC Operating Parameters 6
8、 6.2.1DC ParametersRecessive Bus StateBus Disconnected7 6.2.2DC ParametersDominant Bus StateBus Disconnected.7 6.2.3DC ParametersRecessive Bus StateBus Connected7 6.2.4DC ParametersDominant Bus StateBus Connected .7 6.3ECU Internal Capacitance 8 6.4Physical Media Parameters 8 6.5Termination.8 6.6Con
9、nector Parameters8 6.7Topology Requirements8 6.7.1Multiple On-Board ECU Configuration8 6.7.2Single On-Board ECU Configuration10 6.8Off-Board Tool Requirements.10 6.8.1Off-Board Tool Capacitive Load .11 6.8.2Off-Board Tool Propagation Delay11 6.9Off-Board Tool Cable Requirements 12 6.9.1Cable Length
10、12 6.9.2Cable Propagation Delay 12 6.9.3Cable Configuration 12 6.10Bit Timing Requirements 12 6.10.1Nominal Bit Time (tBIT)12 6.10.2Time Quantum (tQ) .12 6.10.3Synchronization Segment (tSYNC_SEG).13 6.10.4TSEG1 (tSEG1)13 6.10.5TSEG2 (tSEG2)13 6.10.6Synchronization Jump Width (tSJW)13 6.10.7Data Samp
11、le Point (tSAMPLE)13 6.10.8Data Sample Mode .13 6.10.9Media Delay (tBUS)13 6.10.10ECU Delay (tECU)13 6.10.11Propagation Delay (tPROP)13 6.10.12Bit Timing Requirements 14 6.11Electromagnetic Compatibility (EMC).14 LIST OF TABLES Table 1Fault Behavior.6 Table 2Absolute Maximum Bus WireBus Disconnected
12、 .6 Table 3DC ParametersReceive Bus StateBus Disconnected.7 Table 4DC ParametersDominant Bus StateBus Connected .7 Table 5DC ParametersRecessive Bus StateBus Connected7 Table 6DC ParametersDominant Bus StateBus Connected .7 Table 7Internal CapacitanceECU Disconnected .8 Table 8Physical Media Paramet
13、ers for Unshielded Twisted Pair .8 Table 9Termination Characteristics 8 Table 10Connector Characteristics 8 Table 11Multiple On-Board ECU Topology Requirements .9 Table 12Single On-Board ECU Topology Requirements10 Table 13Off-Board Tool Capacitive Load (Without Cable Load).11 Table 14Off-Board Tool
14、 Propagation Delay (Loop Delay without cable Delay)11 Table 15Off-Board Tool Cable Length12 SAE J2284-3 Revised MAR2002 -3- Table 16Off-Board Tool Cable Propagation Delay (One-Way Delay Without Off-Board Tool Delay).12 Table 17CAN Bit TImingMin/Max14 Table 18CAN Register Settings for Standard Time Q
15、uanta .14 Table 19ECU Parameters Related to Emissions15 LIST OF FIGURES Figure 1Multiple On-Board ECU Configuration9 Figure 2Single On-Board ECU Configuration10 Figure 3Off-Board Tool Parameters.11 1.ScopeThis SAE Recommended Practice will define the Physical Layer and portions of the Data Link Laye
16、r of the ISO model for a 500 KBPS High-Speed CAN (HSC) protocol implementation. Both ECU and media design requirements for networks will be specified. Requirements will primarily address the CAN physical layer implementation. Requirements will focus on a minimum standard level of performance from th
17、e High-Speed CAN (HSC) implementation. All ECUs and media shall be designed to meet certain component level requirements in order to ensure the HSC implementation system level performance at 50 KBPS. The minimum performance level shall be specified by system level performance requirements or charact
18、eristics described in detail in Section 6 of this document. This document is designed such that if the Electronic Control Unit requirements defined in Section 6 are met, then the system level attributes should be obtainable. This document will address only requirements which may be tested at the ECU
19、 and media level. No requirements which apply to the testing of the HSC implementation as integrated into a vehicle are contained in this document. However, compliance with all ECU and media requirements will increase the possibility of communication compatibility between separately procured compone
20、nts and will greatly simplify the task of successfully integrating a HSC communication system in a vehicle. 2.ReferencesThis specification takes precedence over all conflicts in the documents cited in this section. 2.1Applicable PublicationsThe following publications form a part of the specification
21、 to the extent specified herein. Unless otherwise indicated, the latest revision of SAE publications shall apply. 2.1.1SAE PUBLICATIONSAvailable from SAE, 400 Commonwealth Drive, Warrendale, Pa. 15096-0001. SAEJ551-4Test Limits and Methods of Measurement of Radio Disturbance Characteristics of Vehic
22、les and Devices, Broadband and Narrowband, 150 kHz to 1000 MHz SAE J551-11Vehicle Electromagnetic ImmunityOff-Vehicle Source SAE J551-15Vehicle Electromagnetic ImmunityElectrostatic Discharge (ESD) SAE J1113-13Electromagnetic Compatibility Measurement Procedure for Vehicle ComponentsPart 13: Immunit
23、y to Electrostatic Discharge SAE J1113-21Electromagnetic Compatibility Measurement Procedure for Vehicle ComponentsPart 21: Immunity to Electromagnetic Fields, 10 kHz to 18 GHz, Absorber-Lined Chamber SAE J1113-41Limits and Methods of Measurement of Radio Disturbance Characteristics of Components an
24、d Modules for the Protection of Receivers Used On-Board Vehicles SAE J1213-1Glossary of Vehicle Networks for Multiplexing and Data Communications SAE J1930Electrical/Electronic Systems Diagnostic Terms, Definitions, Abbreviations, and Acronyms SAE J1962OBD Diagnostic Connector SAE J2190Enhanced Diag
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